MCIMX251AJM4AR2 Freescale Semiconductor, MCIMX251AJM4AR2 Datasheet - Page 105
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MCIMX251AJM4AR2
Manufacturer Part Number
MCIMX251AJM4AR2
Description
Processors - Application Specialized IMX25 1.2 AUTO
Manufacturer
Freescale Semiconductor
Datasheet
1.MCIMX251AJM4AR2.pdf
(140 pages)
Specifications of MCIMX251AJM4AR2
Core
ARM926EJ-S
Processor Series
MCIMX25
Maximum Clock Frequency
400 MHz
Instruction / Data Cache Memory
16 KB
Data Ram Size
128 KB
Operating Supply Voltage
1.15 V to 1.52 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
MAPBGA-400
Interface Type
USB
Memory Type
DDR2
Minimum Operating Temperature
- 40 C
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Note:
Freescale Semiconductor
• All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP/RSCKP = 0) and a non-inverted frame sync
• All timings are on pads when SSI is being used for a data transfer.
• ”Tx” and “Rx” refer, respectively, to the transmit and receive sections of the SSI.
• For internal frame sync operation using external clock, the FS timing is the same as that of Tx data (for example, during AC97
(TFSI/RFSI = 0). If the polarity of the clock and/or the frame sync have been inverted, all the timing remains valid by inverting
the clock signal STCK/SRCK and/or the frame sync STFS/SRFS shown in the tables and in the figures.
mode of operation).
SS10
SS12
SS14
SS15
SS16
SS17
SS18
SS19
SS42
SS43
SS52
SS1
SS2
SS3
SS4
SS5
SS6
SS8
ID
(Tx/Rx) CK clock period
(Tx/Rx) CK clock high period
(Tx/Rx) CK clock rise time
(Tx/Rx) CK clock low period
(Tx/Rx) CK clock fall time
(Tx) CK high to FS (bl) high
(Tx) CK high to FS (bl) low
(Tx) CK high to FS (wl) high
(Tx) CK high to FS (wl) low
(Tx/Rx) internal FS rise time
(Tx/Rx) internal FS fall time
(Tx) CK high to STXD valid from high impedance
(Tx) CK high to STXD high/low
(Tx) CK high to STXD high impedance
STXD rise/fall time
SRXD setup before (Tx) CK falling
SRXD hold after (Tx) CK falling
Loading
i.MX25 Applications Processor for Automotive Products, Rev. 9
Table 81. SSI Transmitter Timing with Internal Clock
Parameter
Synchronous Internal Clock Operation
Internal Clock Operation
Min.
81.4
36.0
36.0
10.0
0.0
—
—
—
—
—
—
—
—
—
—
—
—
—
Max.
15.0
15.0
15.0
15.0
15.0
15.0
15.0
25.0
6.0
6.0
6.0
6.0
6.0
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pf
105
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